Cho hình chóp S.ABC có AB=a, AC=a$\sqrt{3}$ , SB>2a, $\widehat{ABC}=\widehat{BAS}=\widehat{BCS}=90^{o}.Sin(SB,(SAC))=\frac{\sqrt{11}}{11}.Tính V_{S.ABC}$
Edited by kieunhungoc, 16-05-2018 - 21:28.
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